Build failed. https://zuul.opendev.org/t/openstack/buildset/d194c3efa2324eb6bb6a0216272a1e85 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/ef1d5369ed814a67bc76b6bbc93325a9 : SUCCESS in 4m 18s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/8758f191896749978bfcacb97d624b13 : SUCCESS in 5m 35s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/18eb8ab1f42a445989418f113bcd1c23 : SUCCESS in 5m 08s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/b22c51d2da5140a8bfd34961c5e31b54 : FAILURE in 5m 05s